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sashaice [31]
3 years ago
15

What the precent decrease of 129 and 65

Mathematics
1 answer:
maxonik [38]3 years ago
8 0
43% decrease and its spelled percent
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A school district's superintendent wants to administer a test of life skills to a sample of students. The superintendent has amp
tangare [24]

Answer:

-Convenience Sampling

Step-by-step explanation:

Convenience Sampling is a sampling method that is employed simply because the samples are easy to reach or access. It is a non-probability system of sampling and not a very strong method of sampling. For a serious research such as the one being conducted by the Superintendent, who has ample time to perform the research, this is not a very good sampling method. A Convenience style of research would mean that he can just walk into a cafeteria with students and administer the test to them.

Since he has detailed information of the students, he should choose any of the other mentioned sampling techniques in the options provided to randomly select the subjects. <em>This would help to</em> prevent bias, and enable him to make generalizations with the result of the research.

6 0
3 years ago
What is the value of the ratio of the surface area to the volume of the cylinder?
Stella [2.4K]

Answer:

Cylinder Surface Area = (2 • π • r²) + (2 • π • r • height)

Surface Area = (2 * PI * 7^2) + (2*PI*7*22)

Surface Area = 307.8760800518 + 967.6105373057

Surface Area = 1,275.4866173575 Square Inches

Cylinder Volume   =   π • r² • height

Volume = PI * 7^2 * 22

Volume = 3,386.6368805698 Cubic Inches

Surface Area to Volume = 1,275.4866173575 / 3,386.6368805698 =

0.3766233766

Answer is A

Source: https://www.1728.org/diam.htm

Step-by-step explanation:

5 0
3 years ago
Lalala usa test prep heeeeeheheheheehhheheeehheh
Contact [7]

Answer:

:Dd

Step-by-step explanation:

Eh lalsaaaaaaa salaaaa

8 0
3 years ago
Read 2 more answers
Help me with this question please
stich3 [128]

Answer:

(-1,9)

Step-by-step explanation:

union contains both sets.

4 0
2 years ago
I need help with this problem please ​
docker41 [41]
<h3>Answer</h3>

B 5/8

<h3>Explanation</h3>

P(event)= 1/8 (the possibility that Jack rolls a 3) + 4/8 (the possibility that Jack rolls an even number such as 2,4,6,8) = 5/8

3 0
2 years ago
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